On Mon, 24 Jan 2005, DrDiettrich wrote:
Currently I'm trying to define an object for file dates. This object shall allow to compare time stamps for files on disk and in archives, and it also shall be usable to set time stamps for such files. Now I'm undecided what unique internal date/time representation to use in such an object.
For comparison the minimum resolution of the given time stamps should be taken into account, so that computations don't result in different time stamps for the same time. This restriction prohibits the use of TDateTime, where floating point calculations can result in such differences.
Do there exist usable data formats for such time stamps?
What time stamps are in use on the various platforms?
Too various. I suggest using simply TDateTime. It has microsecond resolution, which should be more than enough. It offers the additional advantage that no transformations are necessary for display & compare routines. There are a lot of TDateTime routines in the RTL, they would all be at your disposal.
Michael.
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